Asstgnob to the sheet iron



(No Model.)

S. BARROW.

BLOWER. v

Patented May 5, 1885.

7 WITNESSES .dttornez UNITED STATES PATENT OFFICE.

SAMUEL BARROWV, OF KEMPTON, INDIANA, ASSIGNOR TO THE SHEET IROK BELLOWSCOMPANY, OF SAME PLACE.

BLOWER.

SPECIFICATION forming part of Letters Patent No. 317,436, dated May 5,1885.

Application filed August 9, 1884.

To all whom it may concern:

Be it known that I, SAMUEL BARROW, a citi zen of the United States ofAmerica, residing at Kempton, in the county of Tipton and State ofIndiana, have invented certain new and useful Improvements in Blowers;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

My invention relates to blowers; and it consists in the improvementshereinafter described, whereby a simple and effective blower isconstructed, in which all the moving parts are efi'ectively sealed, andrequiring but a small amount of power for its operation.

In the accompanying drawings, forming a part of this specification,Figure l is a vertical section of a structure embodying my improvements,and Fig. 2 an inverted plan of the improvement. i

The body of the blower consists, primarily, of a receptacle, A,supported upon suitable feet, a, and divided into two compartments by aseries of concentric cylindrical partitions, b c d, which are connectedtogether at their bottom edges by means of an annular band, B. A rod, 0,is secured in the upper portion of the cylinder 1), so as totransversely span the same, and the said rod is bent at its center toform bearings for a pulley, e, the journal f of which bears in loopsformed by the said rod. A cylinder, D, loosely embraces the cylinder 1),extending down into the space formed between cylinders b c, which spacecontains 'oil or other sealing-fluid, which forms a complete airtightpacking around cylinder D, and is provided with a head, 9, which iscentrally perforated, and has secured upon its upper side a flap-valve,h, which normally covers said perforation. A rod, E, has its endssecured on the under side of the head 9 of the cylinder D, and the saidrodE depends down into the cylinder b, and is contracted at its lowerbent end, as indicated in Fig. 1. A brace, i, is secured to the lowerbent end of the rod E, while a second brace, j, is secured a littlefarther up.

(No model.)

An arm, F, projects from one side of the outer cylinder d, and haspivotally fulcru med thereon a lever, G, one end of which has securedthereto a cable, H, which cable passes around the cyl- 5 5 inder d overpulleys It It, journaled on the under side of the band 15, and thencearound the pulley e, and finally secured to the brace c. A stub-shaft,I, is journaled on the under side of the band B, and carries at itsouter end a band-pulley, Z, and is bent at its inner end to form acrank, m, which is connected by a pitman, a, to the brace j. The upperedge of the cylinder 0 is bent outward to form a seat, 0, and is adaptedto receive the cover J, which 6 5 coveris provided with an annularpacking-ring, p, to afford an air-tight bearing for the cap J upon thecylinder 0. The said cap J is centrally perforated, and has secured uponits upper side a flap-valve, q, whichnormally cov- 7o ers saidperforation. A headed cylinder, M, is adapted to be placed over thecylinder 0, so that its cylindrical portion will rest in the spaceformed between the cylinders c d, which space contains oil or othersealing-fluid, which forms 7 5 a complete packing around the cylinder M.A pipe, N, is arranged on one side of the cylinder 0, and extends downto the bottom of said cylinder, for the purpose of conveying the airfrom the receptacle-cylinder M, down through the said oil or liquidsealing and packing, to the outlet, where it is bent to projecttherefrom in the form of an exit-tube, O.

The operation of the invention is as follows Oil or other sealing-fluidis introduced into 8 5 the annular spaces formed between the cylinders bc d, the cap J properly placed in position, and the cylinder M placedover the same.

If the blower is to be operated by hand, the pitman n is disengaged fromthe crank m. The 0 lever G is then vibrated upon its pivot to cause therapid elevation and descent of the cylinder D. Upon each descent of saidcylinder the air contained in the cylinder 1) lifts the flap-valve h andpasses into the space above the head 9, 5 and is there retained byreason of the effective seals afforded at the various points of thedevice. Upon the ascent of the cylinder D the flap-valve h is heldrigidly upon its seat, so as to close with the perforation beneath, andthe head 9 acts as a piston to compress the air in the space above,thereby raising the valve q,

and forcing the said air into the space above the cap J, and downthrough the pipe N to the exit.

It will be apparent that as the compressed air will be forced throughthe opening covered by the valve q much faster than it will escapethrough the pipe N, the cylinder M will be partially lifted toaccommodate the surplus air, and will, upon the succeeding descent ofthe cylinder D, close the valve q and gradually descend under itsweight, thereby regularly forcing the compressed air beneath through thepipe N.

The cable H may be readily disengaged from connect-ion with the lever G,and uponthe connection of the pit-man n with the crank m the pulley Imay be belted to drive the device from any suitable engine.

I claim- I. The combination, in ablower, of the receptacle A, containinga sealing-fluid, and cylinder D, having its lower portion immersed insaid sealin g-fluid, and having ahead provided with an opening coveredby a valve, and cylinder 0,

incasing the cylinder D, having a head provided with an opening coveredby a valve, and a discharge-passage located external to said cylinder 0,and means for reciprocating said cylinder D, substantially as set forth.

2. The combination, in a blower, of a receptacle provided with twoindependent annular chambers containing a sealing-liquid, a cylinder, D,partly immersed in the liquid in the inner chamber, and anincasing-cylinder, M, immersed in the liquid of the outer chamber, avalve, h, covering an opening in the head of the cylinder 1), acylinder, 0, having a cap, J, bearing on a packin g, p, and having avalve, q, covering an opening in said cap, a pipe, N, located in thesecond chamber, and devices for reciprocating the cylinder D,substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL BARROW.

Witnesses GEO. WrLsoN, JEFF REESE.

